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Coal preparation plant main coal washing production method

A production method and coal washing technology, applied in the field of coal mines, can solve problems such as the inability to guarantee safety and high efficiency, and achieve the effects of reducing the probability of failure to stop, reducing the start-up time, and avoiding start-up interruptions.

Inactive Publication Date: 2019-03-29
HUAINAN MINING IND GRP
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is that safety and high efficiency cannot be guaranteed in the coal washing process.

Method used

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  • Coal preparation plant main coal washing production method
  • Coal preparation plant main coal washing production method
  • Coal preparation plant main coal washing production method

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Effect test

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[0044] During the production process, when the downstream locking equipment fails to stop, the superior locking equipment must stop immediately, and all vibrating arc screens in the main coal washing production system do not participate in the locking shutdown, that is, the equipment of the main coal washing system forms a locking relationship. image 3 In the waste rock production process, the sequence from the downstream locking equipment to the upstream locking equipment is as follows: reversible gangue belt conveyor - gangue belt 3 - gangue belt 2 - gangue belt 1, and then divided into two paths, namely high frequency screen - gangue magnetic tail pump And the waste rock removal screen-combination pump-belt conveyor 2-belt conveyor 1-coal feeder; the sequence from the downstream locking equipment to the upstream locking equipment in the production process of China Coal is: reversible China Coal Belt Conveyor - China Coal Belt Machine 3—China Coal Belt Conveyor 2—China Coal ...

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Abstract

The invention discloses a coal preparation plant main coal washing production method, and relates to the technical field of coal mines. The method comprises the following steps that S1, equipment is checked, and specifically equipment parameters and technological parameters are checked before starting; S2, equipment of a main coal washing system is made to form a closed relation; S3, one-key centralized control starting is carried out on the main coal washing system; S4, used materials of the main coal washing system are controlled; and S5, collected information is transmitted to a mobile terminal through an information management system. The method has the advantages that the on-site production safety and the production efficiency are improved, the fault shutdown probability is reduced, apart of unsafe factors generated after equipment heavy load shutdown are avoided, the starting time is shortened, the starting interruption is avoided, and the economic effect is greatly improved.

Description

technical field [0001] The invention relates to the technical field of coal mines, in particular to a production method for main coal washing in a coal preparation plant. Background technique [0002] The existing main washing process for washing raw coal is: a combined process flow of Φ1500 large-diameter pressureless three-product dense medium cyclone + coal slime heavy medium + flotation. The flotation clean coal is recovered by a pressurized filter. This process It has been proved by practice in the construction or transformation of various coking coal preparation plants, the technology is mature, the process is advanced, and the adaptability is strong. The process flow is as follows: figure 1 shown. [0003] The centralized control system of the main washing system of the coal preparation plant is developed around the process flow, and the single equipment is integrated by the centralized control program to form an organic whole. The core component of the centralized ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00B03B9/00
CPCB03B7/00B03B9/005
Inventor 朱再胜石新王明玲倪恒球
Owner HUAINAN MINING IND GRP
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